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Langendorf 12
(Lanco, Lang)
Jewels: 7
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1916-1928
Diameter: 25.4 mm
Height: 3.85 mm
Hands: 1.12 x 0.64 / 0.18 mm
The Langendorf 12 watch movement, manufactured from 1916 to 1928, produced a total of 384,000 units. It features an open face calibre and is identified as model 2. The movement incorporates a bimetallic screw balance and is equipped with a Breguet hairspring. Additionally, this American made movement is designed with stem wind and set functionality, showcasing a sub-second feature.
The Langendorf 12 features the following functions:
- American Made
- Stem wind and set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.110 x 290 x 9.5 mm | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| BALANCE COMPLETE, *UA 10-98* | 4175/ELG | 4175/ELG | Buy part |
| MAINSPRING 4-7-16 DBH | MSN-431 | GR 3373-DBH | Buy part |
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